Product measurement system and method based on automobile traveling data recorder
The production testing system based on vehicle driving recorders has enabled automated testing of hardware and some software functions, solving the problem of low testing efficiency in existing technologies and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-31
AI Technical Summary
In the current technology, the production process of vehicle driving recorders can only rely on manual inspection of hardware, which cannot effectively verify software functions, resulting in low inspection efficiency and affecting production efficiency.
The production testing system based on a vehicle driving recorder includes a production testing module and test fixtures. It exchanges information via a serial cable, automatically tests equipment information, voltage information, IO information and communication information, generates a unique product code, and integrates test result storage and printing of equipment labels.
It enables rapid and comprehensive automated testing of vehicle driving recorders within 180 seconds, improving production efficiency, ensuring product quality, and detecting software components that are difficult to detect manually, thus reducing costs.
Smart Images
Figure CN121762973A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive driving recorder production and testing technology, and in particular to a production and testing system and method based on automotive driving recorders. Background Technology
[0002] A vehicle dashcam is an indispensable safety device in modern driving, recording crucial information during the driving process and providing evidence to help drivers in the event of an accident. In recent years, driven by traffic development, the use of vehicle dashcams has become increasingly widespread.
[0003] However, in the manufacturing process of car dashcams, current technologies rely solely on manual inspection of the hardware, failing to effectively verify software functionality. Inspection is limited to individual devices after production, resulting in time-consuming and slow testing. During factory production, to ensure product quality, both the hardware and some software functionalities of the manufactured products need testing. However, current manual inspection methods only cover hardware, lacking sufficient software functionality verification, and are inefficient, severely impacting overall factory processing efficiency. Summary of the Invention
[0004] In view of this, embodiments of the present invention provide a production testing system and method based on a vehicle driving recorder to solve the problem that in the prior art, the testing can only be carried out manually during the production process. The production testing system includes: a production testing module for issuing test commands and storing test results, and a test fixture for testing the vehicle driving recorder under test. The test fixture communicates with the production testing module via a serial cable.
[0005] The production testing system based on a vehicle driving recorder provided by this invention also has the following technical feature: the test fixture is also used to provide power to the vehicle driving recorder under test.
[0006] The production testing system based on a vehicle driving recorder provided by this invention also has the following technical features: the test fixture includes a PCBA board testing submodule and a complete machine testing submodule.
[0007] The production testing system based on a vehicle driving recorder provided by this invention also has the following technical feature: the test process of the PCBA board testing submodule is configured as follows: Power is supplied to the PCBA board test submodule of the test fixture, and it is connected to the production test module via a serial cable. The production testing module sends test commands to the PCBA board testing submodule via serial port; The PCBA board test submodule tests the vehicle driving recorder under test and returns the test results to the production test module. The production testing module automatically tests the device information, voltage information, IO information, and communication information of the vehicle driving recorder under test. The production testing module organizes and stores the test results of the PCBA board testing submodule and its own test results.
[0008] The production testing system based on a vehicle driving recorder provided by this invention also has the following technical features: The production testing module includes a microcontroller for transmitting analog signals.
[0009] The production testing system based on a vehicle driving recorder provided by this invention also has the following technical features: The testing process for the complete machine testing submodule is configured as follows: Power is supplied to the complete machine test submodule of the test fixture, and it is connected to the production test module via a serial cable. The car recorder under test is placed on the test position of the complete machine test submodule. The production testing module generates a unique product code and sends the product code to the whole machine testing submodule via serial port. The whole machine testing submodule then writes the product code into the vehicle driving recorder under test. The production testing module sends test commands to the complete machine testing submodule via serial port; The whole machine testing submodule tests the vehicle driving recorder under test and returns the test results to the production testing module; The production testing module organizes and stores the test results; Print the product code and affix it to the device as an equipment label.
[0010] Another objective of this invention is to provide a production testing method based on a vehicle driving recorder, the method being implemented based on the production testing system described in any of the preceding claims, including: PCBA board testing and whole-machine testing.
[0011] The production testing method based on a vehicle driving recorder provided by this invention also has the following technical feature: the PCBA board testing includes: Power is supplied to the PCBA board test submodule of the test fixture, and it is connected to the production test module via a serial cable. The production testing module sends test commands to the PCBA board testing submodule via serial port; The PCBA board test submodule tests the vehicle driving recorder under test and returns the test results to the production test module. The production testing module automatically tests the device information, voltage information, IO information, and communication information of the vehicle driving recorder under test. The production testing module organizes and stores the test results of the PCBA board testing submodule and its own test results.
[0012] The testing method based on a vehicle driving recorder provided by this invention also has the following technical feature: the whole-machine testing includes: Power is supplied to the complete machine test submodule of the test fixture, and it is connected to the production test module via a serial cable. The car recorder under test is placed on the test position of the complete machine test submodule. The production testing module generates a unique product code and sends the product code to the whole machine testing submodule via serial port. The whole machine testing submodule then writes the product code into the vehicle driving recorder under test. The production testing module sends test commands to the complete machine testing submodule via serial port; The whole machine testing submodule tests the vehicle driving recorder under test and returns the test results to the production testing module; The production testing module organizes and stores the test results; Print the product code and affix it to the device as an equipment label.
[0013] Compared with existing technologies, the beneficial effects achieved by at least one of the above-mentioned technical solutions adopted in the embodiments of this specification include at least the following: the production testing system based on vehicle driving recorders can quickly test various indicators of vehicle driving recorder products within 180 seconds, facilitating the identification of whether various indicators are normal, providing a simple, convenient, low-cost, and rapid solution for testing product quality. It can perform quality inspection on the manufactured vehicle driving recorder devices, ensuring that defective devices do not leave the factory; compared with the original manual inspection and verification of the version information of vehicle driving recorders (MCU version, system version, App version, hardware version, fixture version, etc.), this automated production testing tool for vehicle driving recorders has the advantages of being fast, accurate, and automatically retaining test record information; furthermore, this production testing system can test software parts that cannot be tested manually, using only one production testing system to perform hardware testing and partial functional software testing on the vehicle driving recorder device to be tested, thus improving production efficiency. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the test process of the test method provided in the embodiments of the present invention. Detailed Implementation
[0016] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0017] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0018] like Figure 1 As shown in this embodiment of the invention, a production testing system based on a vehicle driving recorder is provided. The system includes a production testing module for issuing test commands and storing test results, and a test fixture for testing the vehicle driving recorder under test. The test fixture communicates with the production testing module via a serial cable.
[0019] In some embodiments, the test fixture is also used to provide power to the vehicle driving recorder under test.
[0020] In some embodiments, the test fixture includes a PCBA board test submodule and a complete machine test submodule.
[0021] In some embodiments, the testing process of the PCBA board testing submodule is configured as follows: Power is supplied to the PCBA board test submodule of the test fixture, and it is connected to the production test module via a serial cable. The production testing module sends test commands to the PCBA board testing submodule via serial port; The PCBA board test submodule tests the vehicle driving recorder under test and returns the test results to the production test module. The production testing module automatically tests the device information, voltage information, IO information, and communication information of the vehicle driving recorder under test. The production testing module organizes and stores the test results of the PCBA board testing submodule and its own test results.
[0022] In some embodiments, The production testing module includes a microcontroller for transmitting analog signals.
[0023] In some embodiments, the testing process of the whole machine testing submodule is configured as follows: Power is supplied to the complete machine test submodule of the test fixture, and it is connected to the production test module via a serial cable. The car recorder under test is placed on the test position of the complete machine test submodule. The production testing module generates a unique product code and sends the product code to the whole machine testing submodule via serial port. The whole machine testing submodule then writes the product code into the vehicle driving recorder under test. The production testing module sends test commands to the complete machine testing submodule via serial port; The whole machine testing submodule tests the vehicle driving recorder under test and returns the test results to the production testing module; The production testing module organizes and stores the test results; Print the product code and affix it to the device as an equipment label.
[0024] The equipment label can also print relevant production information for subsequent traceability.
[0025] In some embodiments, a product testing method based on a vehicle driving recorder includes: PCBA board testing and whole-machine testing.
[0026] In some embodiments, the PCBA board testing includes: Power is supplied to the PCBA board test submodule of the test fixture, and it is connected to the production test module via a serial cable. The production testing module sends test commands to the PCBA board testing submodule via serial port; The PCBA board test submodule tests the vehicle driving recorder under test and returns the test results to the production test module. The production testing module automatically tests the device information (such as MCU version, system version, App version, hardware version, fixture version, etc.), voltage information (such as VIN, SYS_12V, SYS_5V, etc.), IO information (such as ACC ignition / shutdown, left turn, right turn, brake input, etc.), and communication information (such as CAN1, CAN2, MCU serial port, SOC serial port, etc.) of the vehicle driving recorder under test. The quality inspector manually judges whether the output of the camera 1 to 4 is normal through a 7-inch display screen. The production testing module organizes and stores the test results from the PCBA board testing submodule and its own test results. The test results can be stored and automatically uploaded to the cloud platform after connecting to the network, or exported as an Excel spreadsheet of test results.
[0027] In the above embodiments, PCBA testing is mainly classified into four categories: 1. Information read by the microcontroller in the PCBA test fixture (the microcontroller has a dedicated MCU program for testing): voltage information (such as VIN voltage detection, SYS_12V, SYS_5V, etc., detecting the voltage values of hardware nodes); 2. PCBA board (device's motherboard) running test ptest software reads the following information: device information (MCU version, system version, App version, hardware version, fixture version, ptest version, and other version test items). 3. Interaction between the microcontroller and the PCBA board (the motherboard of the device) in the PCBA test fixture: PSN writing and reading, IO information (ACC ignition and shutdown, left turn, right turn, high beam, low beam, rear fog light, brake input, etc. IO test items require the microcontroller to give the device a high voltage and then the device to detect whether it is a high voltage, and then give the device a low voltage and then the device to detect whether it is a low voltage. 4. Manual Judgment: The testing personnel use a 7-inch screen to judge whether the output images of cameras 1-8 are normal and whether the power supply of cameras 1-4 is normal. In some embodiments, the whole-machine test includes: Power is supplied to the complete machine test submodule of the test fixture, and it is connected to the production test module via a serial cable. The car recorder under test is placed on the test position of the complete machine test submodule. The production testing module generates a unique product code (the product code information includes the manufacturer's certification code, certified product model, production date, production serial number, manufacturer's abbreviation, and product model), and sends the product code to the whole machine testing submodule via serial port. The whole machine testing submodule writes it into the vehicle driving recorder under test. The production testing module sends test commands to the complete machine testing submodule via serial port; The whole machine testing submodule tests the vehicle driving recorder under test and returns the test results to the production testing module; The production testing module organizes and stores the test results; Print the product code and test results and affix them to the equipment as equipment labels.
[0028] In some embodiments, after the production testing module is connected to the Internet, the computer testing client automatically uploads the test data and its corresponding unique product code to the cloud platform, so as to facilitate subsequent tracing of equipment test results information based on the product code.
[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A production measurement system based on a car event data recorder, characterized by, The system comprises a production and measurement module for issuing test instructions and storing test results, and a test fixture for testing the automobile traveling data recorder, The test fixture exchanges information with the production and measurement module through a serial port line.
2. The automobile traveling data recorder-based production measurement system according to claim 1, characterized by, The test fixture is also used to provide power supply for the automobile traveling data recorder under test.
3. The automobile traveling data recorder-based production measurement system according to claim 1, characterized by, The test fixture comprises a PCBA board test submodule and a whole machine test submodule.
4. The automobile traveling data recorder-based production measurement system according to claim 3, characterized by The test flow of the PCBA board test submodule is configured as: The PCBA board test submodule is provided with power supply, and is connected with the production and measurement module through a serial port line; The production and measurement module issues test instructions to the PCBA board test submodule through a serial port; The PCBA board test submodule tests the PCBA board of the automobile traveling data recorder under test, and returns the test results to the production and measurement module; The production and measurement module automatically tests the device information, voltage information, IO information and communication information of the automobile traveling data recorder under test; The production and measurement module stores the test results of the PCBA board test submodule and its own test results.
5. The automobile traveling data recorder-based production measurement system according to claim 4, characterized by The production and measurement module comprises a single-chip microcomputer for analog signal transmission.
6. The automobile traveling data recorder based production measurement system according to claim 3, characterized by The test flow of the whole machine test submodule is configured as: The whole machine test submodule is provided with power supply, and is connected with the production and measurement module through a serial port line, and the automobile traveling data recorder under test is placed on the test position of the whole machine test submodule; The production and measurement module generates a unique product code, and sends the product code to the whole machine test submodule through a serial port, and the whole machine test submodule writes the product code into the automobile traveling data recorder under test; The production and measurement module issues test instructions to the whole machine test submodule through a serial port; The whole machine test submodule tests the automobile traveling data recorder under test, and returns the test results to the production and measurement module; The production and measurement module stores the test results; The product code is printed and used as a device label and attached to the device.
7. A method for measuring production based on an automobile traveling data recorder, characterized by, The method is realized based on the production and measurement system as claimed in any one of claims 1-6, comprising PCBA board testing and whole machine testing.
8. The automobile traveling record-based production measurement method according to claim 7, characterized by, The PCBA board testing comprises: The PCBA board test submodule of the test fixture is provided with power supply, and is connected with the production and measurement module through a serial port line; The production and measurement module issues test instructions to the PCBA board test submodule through a serial port; The PCBA board test submodule tests the automobile traveling data recorder under test, and returns the test results to the production and measurement module; The production and measurement module automatically tests the device information, voltage information, IO information and communication information of the automobile traveling data recorder under test; The production and measurement module stores the test results of the PCBA board test submodule and its own test results.
9. The method according to claim 7, wherein, The whole machine testing comprises: The whole machine test submodule of the test fixture is provided with power supply, and is connected with the production and measurement module through a serial port line, and the automobile traveling data recorder under test is placed on the test position of the whole machine test submodule; The production and measurement module generates a unique product code, and sends the product code to the whole machine test submodule through a serial port, and the whole machine test submodule writes the product code into the automobile traveling data recorder under test; The production and measurement module issues test instructions to the whole machine test submodule through a serial port; The whole machine test submodule tests the automobile traveling data recorder under test, and returns the test results to the production and measurement module; The production test module stores the test results. The product code is printed and applied as a label to the equipment.